Direction is the most invisible part of the theatrical art. It's not like the conductor in the symphony orchestra performance because he's standing in front of you waiving his arms. You now what he's doing. You don't know what the director is doing unless you know a lot about theater and even then you can only deduce it. You know it when you go to rehearsal. You really know it when they are rehearsing something of yours. I learned more in the rehearsals for The Letter than I have ever dreamed of know in the theater as a critic. If it doesn't make me a better critic, I'm an idiot.